Cutter for forage and grain grinders



Get. 2 1923.

J. HOCHENAUER CUTTER FOR FORAGE AND GRAIN GRINDERS Filed March 26 1923 A TTOR/VE V8 Patented st. 2, 1923.

entree s'ra'rs assie,

earner crater JOSEPH HOCHENAUER, QF PUEBLO, COLORADO.

CUTTER roa .-roaaen AND GRAIN eiarunnns. f

Apnlication filed Marches, 192s. Seria1iNo 62 Ls17.

apparatus for grinding forageand grain,

and more particularly to that type of apparatus in 'wlnch a series of cutters'a-r'e disposed at various angles upon a lengthwise shaft for operation above a semicylindrical screen. The outer ends of the cutters ao tively operate upon the material to be ground and force the ground material through the interstices of the screen. More especially my invention relates to that type of cutter which has square ends and 'is formed of a flat strip of metal with concavely curved sides whereby cutting edges are formed at opposite sides of the square ends, and my object is to improve cutters of this type in certain respects whereby the number of cutting edges may be materiallyincreased and the efliciency and effectiveness of the cutv ter materially enhanced as a result thereof.

In the accompanying drawing which illustrates my present invention and forms a part of this specification,

Figure 1 is a vertical longitudinal section through a forage and grain grinder illustrating the practical application of my invention.

Figures 2 and 3 are respectively a face and an edge view of one of the cutters, and Figure 4 is a the cutters.

Referring now to these figures I have shown in Figure 1 a form of forage and grain grinder in which the material is fed to the cutting cylinder formed of a plurality of blades 10 upon a shaft 11, by means of a feed belt 12 and preliminary feeding cute ters 18, the cut or ground forage or grain being forced by the cutting cylinder including the blades 10, downwardly through the interstices of a semicylindrical screen 14: and

perspective view of one of being finally withdrawn as for instance means of a blower generally indicated at 15.

It is to the cutters 10 of the series disposed onlthe main cutting shaft 11 to which my invention particularly relates, it being noted: that these cutters are of that type having square-ends 161 at the opposites-lids of its oppositely projectingblades 1 7 andthat these blades have slightly concaved sides 18 so as to form acute cutting edges 19 atflopposlte sides of the square ends 16.

as at 20, inwardly from the square ends 16 for ashort distance so as to thus ,bifurcate the blades, leaving furcations 21 which upon each blade are deflected in relatively opporespect site directions-and. at angles with to the plane of the blade body.. I

It will also be noted that in splitting or blfurcatlng the outer ends f the blades,' eac h of the furcationsfil 1s given a concave curvature along its inner side correspondi'i'igto the concaving of its outer side edge so that as a result thereof each blade 1s provided with cutting edges 22 at'the inner sides of the square end of its furcations, supplementing its usual outer cutting edges 19.

In this way I provide a cutter ofgreat- 1y increased effectiveness and efficiency over the usual blade, without materially decreas ing the normal aridnaturahstrength thereof. I

I claim: a, A cutter'for feed and grain grinders and the like having oppositely projecting blades,

each blade provided with a square end and concave sides forming cutting edges'at" op posite sides of said end, the outer portion of each blade being bifurcated longitudinally through the end thereof and having its fur fly invention aims to increase the number of cutting edges of each bladeand to this end proposes a cutter having blades whose outer iportionsare split lengthwise 65.

cations oppositely andlaterally. deflected and concavely curved along the inner sides thereof, forming cutting edges. at the inner sides of the ends of the furcations and permitting the latter to readily clear themselves in action. p JOSEPH HOCHENAUER. 

